| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Chesbro | NYA | 6.28 | 190410010_NYA_CHA |
| Rube Waddell | OAK | 6.09 | 190410011_OAK_DET |
| Cy Young | BOS | 3.04 | 190410020_BOS_BAL |
| Bill Bernhard | CLE | 1.86 | 190410032_OAK_CLE |
| Doc White | CHA | 1.85 | 190410021_NYA_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Duggleby | PHI | -4.72 | 190410031_PIT_PHI |
| Chappie McFarland | SLN | -3.13 | 190410012_SLN_SFN |
| Oscar Jones | LAN | -1.81 | 190410031_CIN_LAN |
| Togie Pittinger | ATL | -1.1 | 190410010_CHN_ATL |
| Jesse Stovall | DET | -0.66 | 190410011_OAK_DET |
Based on accumulated WAA for this season up to 1904-10-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.84 | Jack Chesbro | 423.7 | NYA |
| +002+ | 13.62 | Rube Waddell | 370 | OAK |
| +003+ | 10.13 | Eddie Plank | 354.3 | OAK |
| +004+ | 9.82 | Cy Young | 364 | BOS |
| +006+ | 9.72 | Joe McGinnity | 399.3 | SFN |
| +008+ | 7.84 | Bill Bernhard | 314.7 | CLE |
| +009+ | 7.72 | Doc White | 219 | CHA |
| +010+ | 7.65 | Jesse Tannehill | 281.7 | BOS |
| +011+ | 7.22 | Bill Dinneen | 309.7 | BOS |
| +012+ | 7.01 | Harry Howell | 291.7 | BAL |
| +013+ | 6.73 | Addie Joss | 183.3 | CLE |
| +016+ | 6.19 | Norwood Gibson | 265 | BOS |
| +018+ | 6.03 | George Mullin | 359.3 | DET |
| +019+ | 5.98 | Jack Powell | 374.7 | NYA |
| +020+ | 5.76 | Ed Killian | 323.7 | DET |
| +021+ | 5.57 | Red Donahue | 268 | CLE |
| +023+ | 5.49 | Fred Glade | 279.7 | BAL |
| +025+ | 5.26 | Frank Smith | 192.3 | CHA |
| +029+ | 4.81 | Otto Hess | 141.3 | CLE |
| +032+ | 4.51 | Kid Nichols | 308 | SLN |
| +051+ | 3.05 | Jake Weimer | 297.7 | CHN |
| +050+ | 3.05 | Roy Patterson | 149.7 | CHA |
| +055+ | 2.93 | Ed Siever | 205 | BAL |
| +058+ | 2.65 | Patsy Flaherty | 278 | TOT |
| +062+ | 2.21 | Christy Mathewson | 366.3 | SFN |
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